Door-lock



(ModeL) 2 Shets-Sheet 1.

0. SEELY.

DOOR LOOK.

No. 414,333. Patented Nov. 5, 1889..

. l libmcooeo I X [6 314mm UNITED STATES PATENT OFFICE.

OBADIAH SEELY, OF SYRACUSE, NEYV YORK.

DOOR-LOCK.

SPECIFICATION forming part of Letters Patent No. 414,333, dated November5, 1889.

Application filed November 16,1888. Serial No. 291,010. (Model) To allwhom it may concern:

Be it known that I, OBADIAH SEELY, of Syracuse, countyof Onondaga, inthe State of New York, a citizen of the United States, have inventedcertain new and useful Improvements in Sliding-Door Locks, of which thefollowing is a specification, reference being had to the accompanyingdrawings, in which Figure 1 is a top plan View thereof unlocked. Fig. 2is a like view of same locked, the dotted lines indicating the travel ofthe bolt. Fig. 3 is a vertical sectional elevation on the left side ofthe bolt; Fig. at, top plan and edge views of one section of the bolt.Fig. 5 is a plan view of the hand-lever. Fig. 6 is aplan of thelowerbolt-seetion. Fig. 7 is a plan of a part of the inner face of thecap or cover of the lock-case adjacent to the keyhole.

My invention relates to locks for sliding doors which look by means of aspring-actuated hook adapted to move vertically by the turning of thekey or by the pressure of the hand upon a lever accessible from theoutside of the lock.

The object of my invention is to furnish what is known as a spring-lockwhich can be unlocked from the inside by means of a hand-leveraccessible through the lock-case, and which can be unlocked from theoutside by a key, and in no other way, at the same time so constructingit that the same cannot be picked from the outside by the insertion of aknife-blade into the crack of the door.

My invention consists in the several novel features of construction andoperation hereinafter described, and which are specifically set forth inthe claims hereto annexed.

It is constructed as follows: A is the lockcase, of ordinary form, and,as shown in the drawings, adapted to be let into the stile of the doorand secured by screws through the flanges both to the edge of the stileand to the face of it and provided with the hand-hole 1 through itsouter face, and also provided with a mortisethrough which the lockingbolt passes and further, provided with a stud 2, from which rises thekey pintle 3, and further provided with another stud 45, upon which thebolt-sections are pivoted, and which stud is provided with a screw-hole5to receive the screw which holds the cap upon the case.

arm 10 projecting downward to a point adjacent to the stud 2. The upperbolt-section is constructed with a hook upon its outer end, with aflange 13 projecting into the recess 8 in the bolt-section G, with abend 1% to throw the hook-sections together, with a stud 15 intermediatebetween the bend and the inner end of the section, and withahole 16 toadapt it to fit loosely upon the stud 4.

O is the hand-lever, the lower end of which fits over the stud 2loosely, and is provided with a flange 17 vertical upon its inner edge.This end of the lever fits against the case adjacent to this hole, andjust beyond the sweep of the key upon the pintle 3 it arches upward tothrow it above the bolt-section 6 or between bolt-sections 6 and 7, andin its outer edge is provided with a shoulder 18 and adjacent theretowith a slotway 19, and terminates at its upper end with the handle 20.

WVhen put together in proper position, the stud 9 fits against theshoulder 18 and the stud 15 fits in the slotway 19, and the stud 11 isclose enough to the key-pintle to be struck by the outer end of thekey-arm when the key is turned upon the pintle.

21 is a spring coiled around the stud 4t and having one end bearingagainst the inner side of the lock-case and the other bearing againsta'stu'd 22 upon the handle 20. This spring holds all the working partsin proper relation to each other and throws the hooked ends of thebolt-sections down to the locking position.

It is operated as follows with a key: Vhen the bit of the key strikesagainst the stud 11 and throws it outwardly, swinging the boltsection 6upon the stud 4: and throwing the point vertically, the stud 9,impinging against the shoulder 18, swings the lever 0 upon its pivot,the stud 2, and the stud 15, riding in the slotway 19, throws the upperbolt-section 7 vertically upon the pivot, and as the movement of the keycontinues both hooks are lifted clear from the catch With which they areengaged, and when the key is removed the spring 21 throws the parts backfrom the position shown in Fig. 1 to that shown in Fig.

2. To open the door by the hand-lever C, the

handle 20 is pushed inward by the fingers inserted through the opening1, the lever swings upon this pivot, and the bolt-sections are swungupon their pivot in the same manner as when a key is used. The beveledpoints of the bolt-sections operate to slide the boltsections over thecatch in the ordinary manner. Upon the inner face of the cap-plate 23and around a portion of the circular part of the key-hole 24 is theinward flange 25, to which fits a slotway across the bit of the key, and 26 is a stud projection adjacent to this flange, which fits intoanother slotway in the key, and this flange and stud, in conjunctionwith the flange 17 upon the lever 0, make the lock difficult to pick.

. It will be observed that by the use of the longitudinally-sectionalbolt, one of the sections being provided with a flange 13, this flangeoperates in the first place as a stop to the downward throw of the otherbolt-sec tion, and, further, it will be seen that this bolt'cannot belifted by picking, for the ma sojn' that it is impossible to lift bothbolt-sections at once without the section 6 is first started a shortdistance in order to start the operations of the stud 9 in theslotwayl), and it will be further observed that when the bolt is liftedor unlocked by means of the lever O by hand the flange 13 operates tolift the other bolt-section.

' .WVhat I claim as my invention, and desire to secure by LettersPatent, is

1. The combination, with the lever C, pivotally mounted upon a stud uponthe lockplate, of a locking-bolt composed of two sections pivoted upon astud upon the lock-plate and engaging with the lever, one of theboltsections having an arm on one side adapted to engage with a key,substantially as described.

2. In a lock, a locking-bolt composed of two sectional parts pivotallymounted, one part having an arm and stud to engage with the key, a studengaging with a shoulder upon the lever and having a recess adjacent tothe front end, and the other section being provided with a stud engagingwith a slotway in the lever and having a flange engaging with the recessin the other bolt-section, and a lever pivotally mounted upon thekey-stud and provided with a shoulder to encounter the stud upon onebolt-section, and a slotway engaging a stud upon the other bolt-section,in combination, substantially as described.

3. The combination, with the lever O, pivotally mounted upon a stud onthe lock-plate, of the bolt-section 6, engaging with the boltsection 7,and the bolt-section 7 engaging with the lever C, and the arm 10 on thesection 6, adapted to engage with the key, and a spring 21, engagingwith the lever, substantially as described.

In witness whereof I have hereunto set my hand this 10th day ofNovember, 1888.

OBADIAH SEELY,

In presence of- HOWARD P. DENISON, C. W. SMITH.

